Exhibit 32.2

CERTIFICATION OF THE

PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Texas Ventures Acquisition III Corp (the “Company”) on Form 10-Q for the quarterly period ended March 31, 2025, as filed with the Securities and Exchange Commission (the “Report”), I, R. Greg Smith, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as added by §906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. To my knowledge, the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the period covered by the Report.

Date: June 6, 2025
	By:	/s/ R. Greg Smith
		R. Greg Smith
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

Texas Ventures Acquisition III Corp 10-Q